Folder having a retractable covering cam for changing...

Details Folder having a retractable covering cam for changing... Folder having a retractable covering cam for changing...

2007-08-28

2010-06-29

Harmon, Christopher (Department: 3721)

Manufacturing container or tube from paper; or other manufacturi

With cutting, breaking, tearing, or abrading

And with bending

C493S357000, C493S416000, C493S424000, C493S426000, C493S428000, C493S429000

Reexamination Certificate

active

07744518

ABSTRACT:
This folder includes a device for cutting sheets from a web of paper, a folding cylinder which is provided with movable retention devices and movable blades for folding the sheets cut from the web, a cam for controlling the movement of the movable retention devices by contact with cam followers, a cam for controlling the movement of the tucking blades by contact with cam followers, and at least one covering cam.The covering cam includes two semi-cams which can each be moved radially between a retracted position and an extracted position, the covering cam being in a configuration for straight operation when the semi-cams are in a retracted position and in a configuration for collect operation when the semi-cams are in an extracted position.

REFERENCES:
patent: 2016486 (1935-10-01), Crafts
patent: 5797319 (1998-08-01), Tomczak
patent: 6093139 (2000-07-01), Belanger
patent: 6547232 (2003-04-01), Herda et al.
patent: 6932755 (2005-08-01), Teshima et al.
patent: 2007/0167306 (2007-07-01), Prum
patent: WO 2005/102889 (2005-11-01), None

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